propline-mcp

Listed in the official MCP Registry as `io.github.proplineapi/propline-mcp` — discoverable from Claude Code, Claude Desktop, and any MCP-aware client.

Model Context Protocol server for the PropLine player props betting odds API. Plug it into Claude Desktop, Claude Code, or any MCP-compatible client and ask natural-language questions about live odds, prop resolution, cross-book +EV, scores, and box-score stats — the model picks the right tool, calls the API, and answers from real data.

> No more "I'd need an API for that" deflections from your AI assistant. PropLine MCP turns sports-betting research into a chat.

What you can ask

Once installed, you can prompt the model with things like:

• *"What's the +EV on Yankees vs Red Sox tonight across all books?"*
• *"Pull Aaron Judge's last 20 prop-bet history with hit/miss outcomes."*
• *"List today's MLB pitcher strikeout props from DraftKings and Pinnacle side by side."*
• *"Did Nikola Jokic's points prop hit last night? What was the line?"*
• *"Compare PrizePicks DFS projections to Bovada lines for tonight's NBA slate."*
• *"What's the first-quarter total on Lakers vs Celtics, and which book has the best Over?"*

The model uses these tools transparently:

Hosted endpoint (no install)

The same 27 tools are served over Streamable HTTP at

https://mcp.prop-line.com/mcp

Use it from any remote-capable client — nothing to install, nothing to run.

Auth is per request. Send your PropLine key as `Authorization: Bearer ` (or `X-API-Key: `, or `?apiKey=` for clients that cannot set headers). With no key the endpoint falls back to the shared free demo key — every tool works, paid features are redacted, limits are pooled. Keys are used for the one request and never stored.

Claude Code with your own key:

claude mcp add --transport http propline https://mcp.prop-line.com/mcp \
  --header "Authorization: Bearer YOUR_KEY"

The stdio build below (`npx -y propline-mcp`) is the same code; pick whichever your client prefers.

Zero-config quick start

No key needed to try it. The server falls back to a shared public demo key, so this just works:

npx -y propline-mcp

Your agent can immediately pull live odds, scores, and stats. The demo key is free-tier and shared — paid features (resolution, +EV, history, exports) return a redacted teaser, and limits are pooled across everyone. For full access and your own limits, set `PROPLINE_API_KEY` (below). Get a free personal key at prop-line.com.

While the demo key is in use, every tool result carries a second content block noting the pooling and redaction, so the assistant can explain an empty field or a 429 accurately. It disappears the moment you set your own key.

Install (with your own key)

1. Get a PropLine API key

prop-line.com — free tier is 1,000 requests/day, no credit card. Hobby at $9/mo unlocks resolution, history, closing lines and +EV — Pro at $19/mo is that same feature set at 25,000 requests/day.

2. Add to your MCP client

Claude Desktop

Edit `~/Library/Application Support/Claude/claude_desktop_config.json` (macOS) or `%APPDATA%\Claude\claude_desktop_config.json` (Windows):

{
  "mcpServers": {
    "propline": {
      "command": "npx",
      "args": ["-y", "propline-mcp"],
      "env": {
        "PROPLINE_API_KEY": "YOUR_KEY_HERE"
      }
    }
  }
}

Restart Claude Desktop. The hammer icon should show 27 PropLine tools. (Or skip the install and add `https://mcp.prop-line.com/mcp` as a custom connector — see the hosted endpoint above.)

Claude Code

claude mcp add propline \
  --env PROPLINE_API_KEY=YOUR_KEY \
  -- npx -y propline-mcp

Any other MCP client

Run `propline-mcp` as a stdio server. Most clients accept a command + env. See the MCP spec for client-specific config.

Configuration

Comparison with the-odds-api

PropLine is API-compatible at the response level (same `bookmakers[].markets[].outcomes[]` shape) and adds three things the-odds-api doesn't offer at any tier:

1. Prop resolution — every Over/Under graded against the actual box-score stat after the game

2. Cross-book +EV — Pinnacle-anchored no-vig fair lines per book, sorted with +EV plays at the top

3. Webhooks — push delivery on Streaming tier, not pull-only

Pricing: free at 1,000 req/day (vs their 500/month), Hobby at $9/mo for 5,000 req/day, Pro at $19/mo for 25,000, Streaming Lite at $39/mo for 250,000 (webhooks + websocket), Streaming at $79/mo for 1,000,000. No credit math.

Links

• Hosted MCP endpoint: `https://mcp.prop-line.com/mcp` (Streamable HTTP)
• Privacy policy: prop-line.com/privacy
• Website: prop-line.com
• API Docs: prop-line.com/docs
• Recipes (code for common jobs): prop-line.com/recipes
• Odds API by sport and market (live line, books, graded hit rate): prop-line.com/odds-api
• Prop resolution (every prop graded against the box score): prop-line.com/prop-resolution-api
• Cross-book +EV: prop-line.com/ev
• Pricing: prop-line.com/pricing
• Dashboard: prop-line.com/dashboard
• OpenAPI reference: api.prop-line.com/docs
• For AI agents (llms.txt, MCP setup): prop-line.com/for-ai-agents
• Python SDK: `pip install propline`
• Node SDK: `npm install propline`

License

MIT